Separator or screen for threshing-machines.



l. HILGER.

SEPARATOR 0R SCREEN FOR THRESHING MACHINES.

w M W e ww m Q m Q 9%, @M m I. HILGER. SEPARATOR 0H SCREEN FOR THRESHING MACHINES.

APPLICATION FILED IULY 3,19I6.

Patented May 1, 1917.

3 SHEETS-SHEET 2.

v @www J. HILGER. SEPARATOR OR SCREEN FOR THRESHING MACHINES. APPLICATION FlLE'D )ULY 3. H916. 1,224,377. Patented May 1, 1917.

3 SHEETS-SHEET 3.

me mmm: creas co JAMES HILGER, OE SCOTTVILLE, MICHIGAN.

SEPARTOR OR SCREEN'FOR THRESHING-MACHINES.

Specification of Letters Patent.

Patented May 1, 1917.

Application fnea July s, 1916. serial No. 107,366.

To all whom it may concern:

Be it known that I, JAMES Hinonn, a citizen of the United States, residing at Scottville, in the county of Mason and State of Michigan, have invented certain new and useful Improvements in Separators or Screens for Threshing-h/Iachines, of which the following isa specification.

My invention relates to improvements in separators or screens, adapted for use ...in threshing machines, while not necessarily restricted to such use.

An important object of the invention is to provide a separator of the above mentioned character, adapted to thoroughly separate the grain from the straw, in a highly expeditious and continuous manner.

A further object of the invention is to provide means for adjusting the angular position of shaker bar extensions, so that the separator may properly act upon materials of different character.

A further object of the invention is to provide apparatus of the above mentioned ch aracter, which is simple in construction, inexpensive to manufacture, and convenient in use.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings, forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of apparatus embodying the invention,

Fig. 2 is a plan view of the same,

Fig. 3 is a perspective view7 of the discharge end of the separator, showing a tail gate,

Fig. 4 is a central vertical longitudinal sectional view through the tail gate and associated elements,

Fig. 5 is a similar view through a portion of the separator table, showing parts in elevation, means for angularly adjusting the shaker bar extension, and,

Fig. 6 is a detail section through a cylinder and spring.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of 'my invention, the numeral 11 designates main longitudinal beams of the table, which are rigidly connected by transverse bars 10. As clearly shown in Fig. 5, these transverse bars are angularly arranged and their upper edges are inclined toward the discharge end of the table. nal beams 11 and the transverse bars 10 constitute the body portion of the table and longitudinal shaker bars 12 are rigidly attached upon the transverse bars 10. The longitudinal shaker bars 12 are provided upon their upper edges with ratchet' teeth 13, which face toward the discharge end of the table, thus allowingthe free passage ofthe straw toward the discharge end, but preventing its backward movement.

The numeral 14 designates shaker bar eX- tensions or arms, having ratchet teeth 15, extending in the same direction with the ratchet teeth 13. The shaker bar extensions 14 are pivoted to the longitudinal shaker bars 12 by means of bolts 16, as shown. I preferably pivot pairs of the shaker bar eX- tensions 14 to the inner longitudinal shaker bar 12, as clearly illustrated in Fig. 2. rIhe shaker bar extensions 14 are preferably arranged in transverse sets, as clearly illustrated in Fig. 2, and the shaker bar extensions in each set carry depending cranks 17, operating in longitudinal slots 1S, formed through the transverse inclined bars 10, as shown. Extending through the transverse sets of cranks 17 are transverse rods 18,and these rods are connected by longitudinal movable pitmen 19, whereby theymove together. Pivoted to the inner longitudinal shaker bar 12 is a lever 20, as shown at 2l. This lever has pivotal connection between it ends with pitmen 22, which diverge forwardly for pivotal connection with one of the rods 18. It is thus apparent that by swinging the lever 20 all of the shaker bar extensions 14 may be angularly adjusted with respect to the longitudinal shaker bars. Means are provided to lock the lever 20 in the desired angular position, comprising a latch arm 23, having a hooked head adapted for insertion within a selected one of the openings 24 formed in the lever 20. lIhe upper end of the latch arm 23 is pivoted to the central longitudinal shaker bar 13, as shown at 25.

Secured to the outlet end of the table and attached to the beams 11 thereof is a discharge chute or trough 26, preferably formed of sheet metal. As clearly shown in Fig. 4, this trough or chute has a bottom 27, having a rearwardly inclined discharge lip 28, for feeding the grain rearwardly. EX- tending longitudinally within the lower The longitudichute 27 are preferably curved supporting rods 29, the lower ends of which extend `through apertures 30 and the upper ends 0f which are attached to a transverse bar 31, secured to the sides of the chute 27. Arranged above and supported by the rods 29 is a perforated false bottom.32, preferably inclined, and having its upper end secured to a transverse strip 33, as shown. Arranged above the false bottom 32 and serving to hold it in place are spaced horizontal rods 34, the lower ends of which are bent downwardly and pass through apertures in the bottom 27 and the upper ends of which are held within sockets 35 secured to the strip 33. Extending through openings 36 in the false bottom are fingers 37 adapted to operate between the rods 34. These fingers 37 are rigidly secured to a transverse rock shaft 38, having its ends journaled through the sides of the chute 27. The fingers 37 form a pivoted tail-gate. The

rock shaft 38 is turned by means of cranks 39, rigidly secured thereto. These cranks are moved by pitmen 40. Each pitman, as clearly shown in Eig. 6, is provided at its free end with a plunger or head 41, mounted to reciprocate within a cylinder or tube 42. A coil spring 43 is arranged within the cylinder or tube 42 and is held therein by a screw-threaded plug 44, having connection with an apertured element 45. This apertured element is pivoted to a lever 46, as showngat 47. The lever 46 is pivoted to the beam 10, as shown at 48. The lower end of the lever 46 is pivotally connected with the stationary member, not shown. It is thus apparent that during the reciprocatory movement of the table, the lever 46 will be swung upon its pivot, thus effecting a reciprocatory movement of the pitmen 40. This movement of the pitmen will cause a continuous turning movement of the rock shaft 38 in opposite directions, causing the fingers 37 to rise and fall.

In operation, the lever 2O is swung to the desired angular position and locked therein, whereby the shaker bar extensions 14 are held in the vdesired angular' position. The table is suitably supported and reciprocated longitudinally whereby the straw and grain fed upon the intake end of the table are caused to travel longitudinally over the shaker bars toward the chute 27. The table maybe horizontally arranged or inclined toward its discharge end. rIhe straw and grain is caused totravel upwardly over the shaker bar extensions, and drop therefrom upon the longitudinal shaker bars, thus effecting a thorough agitation of such material. The straw finally discharges upon the tail gate embodying the lingers 37 within the chute 27.

Copies of this patent may be obtained for 1. In a separator of the character de scribed, a table, provided with longitudinal shaker bars having ratchet teeth, a discharge chute connected with the outlet end of the table, an apertured false bottom arranged within the discharge chute, and a pivoted tail gate disposed above and near the apertured false bottom and comprising spaced rods.

2. In a separator of the character described, a table provided with longitudinal shaker bars having ratchet teeth, a discharge chute connected with the outlet end of the table and having a forwardly inclined grain outlet, an apertured false bottom arranged within the discharge chute, a pivoted tail gate disposed above and near the aper tured false bottom and comprising spaced rods, andl means to swing the pivoted tail gate upon its pivot.

3. In a separator' of the character described, a table, longitudinal shaker bars secured to the table and provided with teeth, pivoted shaker bar extensions disposed near the longitudinal shaker bars and provided with teeth, means to angularly adjust the shaker bar extensions, a discharge chute connected with the outlet end of the table, an apertured false bottom arranged within the discharge chute, and a pivoted tail-gate disposed above and near the apertured false bottom and comprising spaced rods.

4. In a separator of the character described, a table, longitudinal shaker bars secured to the table and provided with teeth, shaker bar extensions pivoted to the longitudinal shaker bars and provided with teeth, means to swing the shaker bar extensions upon their pivots, a discharge chute connected with the outlet end of the table and having a forwardly inclined grain outlet, an apertured false bottom arranged within the discharge chute, a pivoted tail-gate disposed above and near the apertured false bottom and comprising spaced rods, and means to swing the pivoted tail-gate upon its pivot.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES HILGER EVALYN ALWAY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

